On Thu, May 24, 2007 at 11:51:53PM +0200, Romano Giannetti wrote:
> On Thu, 2007-05-24 at 23:12 +0200, Sam Ravnborg wrote:
>
> >
> > I really cannot see why it makes a difference.
> > If you use += (and :=) make will resolve EXTRA_CFLAGS when it see it.
> > Whereas with = make will resolve it only when actually referenced.
> >
> > But the way we use EXTRA_CFLAGS it should not matter.
> > If the fix above really helps nfs I need to take a closer look tomorrow.
>
> No, you're right, it doesn't help. What could help is a form of saying
> to make "add this EXTRA_CFLAGS to whatever is specified in the command
> line". No idea if it exists.
The GNU make manual says:
"To append more text to a variable defined on the command line, use:
override VARIABLE += MORE TEXT
"
HTH,
Johannes
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